kimble



(No Model.) v

J. E. KIMBLE.

STEAM ENGINE.

No. 330,494. Patented Nov 1'7, 1885.

Witnesses.

In 2/6 nloz:

CZ/M

.PNITEDP STATES ATENT JAMES E. KIMBLE, OF VICKSBURG, MICHIGAN, ASSIGNOROF ONE-THIRD TO RANSOM E. KIMBLE, OF SAME PLACE.

STEAM-ENGINE.

SPECEFICATION forming part of Letters Patent No. 330,494, dated November17, 1885.

Application filed February 27, 1885. Serial No. 157,174. (No model.)

closure removed, showing the internal arrangement; Fig. 2, an endelevation of the engine, parts being broken away; and Fig. 3 is a sideelevation of internal parts of Figs. 1

and 2, indicated by like letters, looking from a point at the left handof the latter figures.

Referring to the letters marked on the drawings, P P are the radial sideinclosures of the steam-chest, joining at the lower end and radiatingupward therefrom. The upper inclosure, F, is curved or bowed,representing the fractional portion of a circle, of which these threeinclosures, when viewed in end elevation, constitute a sector.

B B are the end inclosures, thus forming a sectoral-shaped steam-chest,inclosed by five walls. These walls, where they join each other, are ofcourse provided with suitable packing or otherwise made steam-tight. Thechest is provided with suitable induction and eduction ports enteringthe chest at any practical points. In Fig. 1 these ports are shownleading through the wall F, at f f. These ports are provided withsuitable valves in the usual manner of constructing steam-engines, andas this is so well understood no valves are here shown.

it are bolt-holes in the radial sides P P, through which the bolts arepassed which secure the end inclosures, B B. Arock-shaft, a, hassuitable bearings at the juncture of the radial inclosures P P, withonly a portion of the rock-shaft confined by said bearings, the upperperiphery being exposed within the chamber of the chest.

0 illustrates the Babbitt lining of the bearings in which the shaft arocks. This rock-shaft extends through each of the end inclosures,

B B, each of said extended ends of the shaft being provided with aconnecting-rod crank,

R R. The ends of the shaft to do not have bearings, the bearing of theshaft a Within the 55 chest when suitably packed or bushed, as abovedescribed, being far preferable for trueness of movement and simplicity.The con'nectingrod r is here shown broken away,

it not being deemed necessary to show the connection of these rods withthe drivingshaft of the engine, which shaft, in the arrangement hereshown, would be located at some suitable point at the right hand of thesteam-chest. By connecting a crank, R, with each end of the shaft fordriving another shaft by means of connecting rods, no bearings areneeded at each end of the shaft a, as the strain is equally distributedand the engine has greater power with less liability to get out of orderas compared to such shafts having a crank at one end only. The brokenarms A show the connection of a support with the steam-chest. The use ofthese arms and certain novel features of the driving-shaft (not 7 5 hereshown) are to form the subject-matter of a future application 5 hencethe details are not here given. Between the lower end of the crank R andthe wall B of the chest a suitable stuffing-box may be employed. (Nothere shown.) Within the chest is a steam-actuated plate, D, rigidlysecured to the rockshaft a and radiating therefrom to the bowed wallabove. This plate is of a size to loosely engage with the interiorsurfaces of the walls B B and F, so that the plate may be oscillatedfrom one radial side of the chest to the other by the inducted steamthrough suitable ports on each side, and thus rock the shaft a, withwhich said plate is connected. This action 0 imparts reciprocatingmotion to the connecting-rods a".

It will be understood that the edges of the plate D may be provided withany suitable packing to make the engagement of the edges with the wallsof the chest steam-tight.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- The steam-chest, having the semi cylin-10o drieal bushed shaft-bearings at the juncture In testimony of theforegoing I have here-' of the radial side inelosures of the chest, theunto subscribed my name in presence of two 10 roek'shaft, and its radialplate, said shaft be- Witnesses.

ing passed through the chest and in said bearings, and having no otherbearings, each end JAMES KIMBLE" of the rock-shaft without the chestbeing pro- Witnesses:

vided With a connecting-rod crank, all c0n1- WM. HARTY,

bined substantially as set forth. GEO. D. B. HALL.

